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23 view(s) Whatman No 1 filter papers- why are they so frequently used?
Whatman No 1 filter paper is made of cellulose fibres for routine applications with medium retention and flow rate:
The Technical Bit
Grade known as: Whatman No 1
Diameter of circles available: [mm] 10, 15, 20, 25, 30, 32, 42, 47, 55, 70, 85, 90, 110, 125, 150, 185, 240, 270, 320, 400, 500
Packs of sheets of No 1: 2.6x3.1cm, 7.5x10cm, 46x57cm, 58x68cm, 60x60cm,
Reels of No.1: 47...
